Concealment as a motif and plot device in “Hamlet”

Write an essay on concealment as a motif and plot device in the play “Hamlet”.
Use and prove this thesis statement in the essay:
In Shakespeare’s “Hamlet,” the motif of concealment, whether through feigned madness, masks, or hidden intentions, serves as a multifaceted plot device, driving the narrative forward as characters hide their true intentions and emotions through forms of secrecy, manipulation, and disguise to further their individual agendas, ultimately leading to their downfall.